Imatra dam
E1030912
Imatra dam is a major hydroelectric dam on the Vuoksi River in Imatra, Finland, known for harnessing the Imatrankoski rapids for power generation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Imatra dam canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13279539 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Imatra dam Context triple: [Imatra hydropower plant, hasDam, Imatra dam]
-
A.
Viimsi
Viimsi is a rapidly developing suburban municipality in northern Estonia, located just northeast of the capital city Tallinn.
-
B.
Summajärvi
Summajärvi is a lake on the Karelian Isthmus in present-day Russia, historically associated with the nearby village of Summa and the Winter War battles fought in the area.
-
C.
Petäjävesi
Petäjävesi is a municipality in Central Finland known for its rural landscapes and the UNESCO-listed Petäjävesi Old Church, a notable example of traditional Nordic wooden architecture.
-
D.
Talaja
Talaja is a town in the Bhavnagar district of Gujarat, India, known for its historic Jain temples and proximity to the Shatrunjaya hills.
-
E.
Rautjärvi
Rautjärvi is a municipality in South Karelia, southeastern Finland, known for its rural landscapes, lakes, and proximity to the Russian border.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Imatra dam Target entity description: Imatra dam is a major hydroelectric dam on the Vuoksi River in Imatra, Finland, known for harnessing the Imatrankoski rapids for power generation.
-
A.
Viimsi
Viimsi is a rapidly developing suburban municipality in northern Estonia, located just northeast of the capital city Tallinn.
-
B.
Summajärvi
Summajärvi is a lake on the Karelian Isthmus in present-day Russia, historically associated with the nearby village of Summa and the Winter War battles fought in the area.
-
C.
Petäjävesi
Petäjävesi is a municipality in Central Finland known for its rural landscapes and the UNESCO-listed Petäjävesi Old Church, a notable example of traditional Nordic wooden architecture.
-
D.
Talaja
Talaja is a town in the Bhavnagar district of Gujarat, India, known for its historic Jain temples and proximity to the Shatrunjaya hills.
-
E.
Rautjärvi
Rautjärvi is a municipality in South Karelia, southeastern Finland, known for its rural landscapes, lakes, and proximity to the Russian border.
- F. None of above. chosen
Statements (36)
| Predicate | Object |
|---|---|
| instanceOf |
hydroelectric dam
ⓘ
infrastructure ⓘ |
| cityServed | Imatra NERFINISHED ⓘ |
| constructionMaterial | concrete ⓘ |
| continent | Europe ⓘ |
| country | Finland ⓘ |
| countryCode | FI ⓘ |
| crosses | Vuoksi River NERFINISHED ⓘ |
| energySource | hydropower ⓘ |
| hasFunction |
flood control assistance
ⓘ
regulation of river flow ⓘ |
| hasNearbyCountry | Russia NERFINISHED ⓘ |
| hasNearbySettlement | Imatra NERFINISHED ⓘ |
| hasPart | Imatra hydroelectric power plant NERFINISHED ⓘ |
| hasTouristAttractionNearby | Imatrankoski rapids NERFINISHED ⓘ |
| isInEasternHemisphere | true ⓘ |
| isInNorthernHemisphere | true ⓘ |
| languageOfSurroundingArea | Finnish ⓘ |
| locatedIn | Imatra NERFINISHED ⓘ |
| locatedInBasin |
Lake Ladoga basin
NERFINISHED
ⓘ
Vuoksi basin NERFINISHED ⓘ |
| locatedInCountry | Finland NERFINISHED ⓘ |
| locatedInMunicipality | Imatra NERFINISHED ⓘ |
| locatedInRegion | South Karelia NERFINISHED ⓘ |
| locatedInState | South Karelia region NERFINISHED ⓘ |
| locatedOnRiver | Vuoksi River NERFINISHED ⓘ |
| near |
Imatrankoski rapids
NERFINISHED
ⓘ
Russian border ⓘ |
| operator | Fortum NERFINISHED ⓘ |
| ownedBy | Fortum NERFINISHED ⓘ |
| partOf | Finnish national power grid NERFINISHED ⓘ |
| purpose |
electricity production
ⓘ
hydroelectric power generation ⓘ |
| usesWatercourse | Imatrankoski rapids NERFINISHED ⓘ |
| waterBodyControlled | Vuoksi River NERFINISHED ⓘ |
| watercourse | Vuoksi River NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Imatra dam Description of subject: Imatra dam is a major hydroelectric dam on the Vuoksi River in Imatra, Finland, known for harnessing the Imatrankoski rapids for power generation.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.